Paper bag machine



Sept. 22, 1931. w. L. TAYLOR PAPER BAG MACHINE Filed Aug. 3, 19285.Sheets-Sheet, 1

v INVENTOR. 134 /1812? L. Taylor ATTCRN Sept. 22, 1931. w. TAYLOR1,324,383

PAPER BAG MACHINE Filed Aug. 3. 1928 3'Sheets-Sheet, 2

INVENTOR.

27113122 7L. Ta'tylor A TT RNE Y.

Sept. 22, 1931. w. TAYLOR PAPER BAG MACHINE Filed Aug. 3, 1928 3Sheets-Sheet, 3

A TTORNE Y.

Patented Sept. 22, 1931 UNITED srA'rss PATENT ferries L. rams, orcmcrmtan, one

run BAG iracnnm Application filed Au u t a, less. semi r... aama.

m width than-the cover, one cutting unit be ing adjusted to cut theliner and the second cutting unit adapted to cut-the cover.

The principal objeetof this invention is to eliminate one cutting unit,thereby reducing the initial cost of the 'equipment and the addedadjustments needed in 'its opera tion.

Another object of this invention is that by eliminating one cutting unitI am enabled 6 to re-locate the scoring mechanism of the machine, sothat the scoring operation is accomplished before the printingoperation, whereas with machines having two cutting mechanisms thescoring operation is accom- '25 plished after the printing operation.When the scoring operation succeeds the printing operation, and owing tothe established location of the rint on the ba it is necessary to scoret rough a wet prlnt, smud ing it to a very considerable extent, and ma'ng the bag unsightly.

With my improved single cutting mechanism I now cut out with one dieingout unit, which means that both of the webs of paper, namely: the linerand cover, are died out or cut out at one and the same time, p which isof very considerable advantage in bag structure, as with two cutting outmech anlsms, operating at two different points is on the machine andthen joining up the two plies or webs of paper afterwards, registry,which is necessary, is not always obtained, and in gluin the bagstogether the narrow ply, where bags are not properly registered, oftenoverlaps the outer ply at the point of the glue flaps, so that perfectsealing is not had. This allows theliner to push down in the bag in thepackaging operation in the plant of the tobacco manufacturer and wherethe bag is imperfectly to compensate for the difference in' widt ofglued it is likely to burst, open in the hands of; the consumer. Thatis, not being perfectly alined and lued in accordance with the design'ofthe ag,it is not 'eflicient in roduction, and is not as serviceable inthe ands of theiconsumerg v My invention consists in'providing a pair ofshoes horizontally arran ed between the dieing out cylinders which s oesare ada ted the respective plies or'webs of aper, sojthat both websmaybe died out at t e same time andby onecutting unit.

My invention further consists in the construction, c'ombination, locatiori and arrangement of arts, as hereinafter morefully set forth andclaimed."

' In the drawings:.

Fig. 1 represent's'afront elevation of a single cutting unit for amultiplex bag making machine, the shoes appearing in vertical crosssection' 3 Fig. 2 is a vertical section taken on a plane correspondingto line of-Fig. 1*,

Fig. 3 is a plan view ofgFig'. 1, part of the cutting mechanism beingremoved to more clearly illustrate the invention;

, Fig. 4 ,is a, perspective viewof my inven-- tion detached from thecutting unit of the bag; machine;

ig. 5 is a fragmentary sectional view, partly in elevation, showing themannerin which the liner and cover are drawn past the shoes; I

Fig. 6 is a perspective view of the relative osition of the cover andliner when the cover is passing under the shoe, a portion of the linerbeing broken away to clearly illustrate the manner in which the two websof paper, of different thicknesses, are cut at the same time;

Fig. 7 is a bottom view of one of the shoes;

Fig. 8 is a plan view of the cover with the liner placed thereupon toshow the respective difference in width of said liner, as comas paredwith said cover; and Fig. 9 is a perspective view of a portion of thebag machine, parts'being broken away and omitted and showing theinvention installed thereon. 100

In the embodiment of my invention as illustrated and which shows apreferred construction I rovide .a single cutting unit which comprisesside frames 1, shafts 2 and 3 and dieing out cylinders 4, 4a and 4b andcooperating dieing out cylinders 5, 5a and 5?), respectively. Shafts 2and 3ai'e rotatably mounted in the side frames 1 and are adapted to bedriven in opposite directions in the usual and well-known manner. Shoes6 and 7 are horizontall disposed'between shafts 2 and 3, respective y,and shoe 6 is posltioned between dieing out cylinders 4-and 4a anddieing out cylinders 5 and 5a. Shoe 7 is horizontally dis osed betweenshafts 2 and 3 and positioned getween dieing out cylinders 4a and 4b and5a and 5b, as clearlyshown in Fi s. 1 and 3. The shoes 6 and 7 aresuitab y attached to horizontal bars 8 and 9 by screws 10, as clearlyshown in Figs. 2, 3 4 and 9. Said bars 8 and 9 are supported by sideframes 1 through stud bolts 10a, plates 11 and nuts 12. The plates 11are securely fixed to the top 13 of side frames 1 by bolts I 14, asclearly shown in Fi s. 1, 2, 3 .and 9, re-

spectively. The inner e ges 8a and 9a of bars 8 and 9 are tapered orbeveled to permit the edges of the two webs of paper to be firmly heldbetween the dieing out cylinders 4, 4a and 4b and 5, 5a and 56,respectively, as shown in Fi s. 2 and 9. Should it e desired to raise orlower the shoes 6 and 7 such adjustment can be accomplished throu h theadjustmentof nuts 12. If a laterala 'ustment of said shoes is desired,this can be accomplished by loosening screws 14 until said adjustment ismade an then tightening said screws to hold said adjustment.

Dieing out cylinders 4, 4a and 4b are fixed upon shaft 2 by set screws18 while cylinders 5, 5a and 5b are fixed upon shaft 3 by set screws 19.

The operation of my invention is as follows:

As shown in Fig. 8, it will be noticed that Y the liner 15 is of agreater width than cover 16 on one side and that cover 16 is of agreater width than liner 15 on the other side after dieing out. In orderto simultaneously cut the liner 15 and cover 16 with one cutting unit itis necessary to pass the liner 15 over the horizontally disposed bars 8and 9 and the cover 16 beneath the shoes Stand 7, as clearly shown inFigs. 5-and 9. With an arrangement of this nature, it will be clearlyapparent that the difference in width of the cover relative to the lineris taken care of by passing beneath the shoes 6 and 7. When the linerand cover pass beyond the shoes 6 and 7 the cover 16 is again flattenedout, as shown in Fig. 9, thus maintaining the liner in proper registrywith the cover for the subsequent operations upon the bag blank.

If desired, the shoes 6 and 7 may each be I eliminate one cutting unit;also one exhaust hopper and piping system for same, as well as a blowerwhich, needless to say, eliminates attention and adjustment and cutsdown the lost time in operation of the machine.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a paper bag machine having means for feeding two webs ofsuperimposedpa r of different widths, in combination wit a singlecutting unit for simultaneously cut-' ting the webs to form he blanks,and means associated with said cutting unit to compensate for thedifierence in width of said superimposed plies of paper, comprising apair of horizontally disposed shoes located centrally of said cuttingunit and between said webs.

2. In a paper bag machine having means for feeding two webs ofsuperimposed paper of different widths, in combination with a singlecutting unit adapted to receive and out both webs of pa r to form bagblanks, comprising one set 0 dieing out rollers, spacing means betweensaid rollers over which one web of the a and under whic t e remainingweb of paper is adapted to be passed, said spacing members compensatingfor the difierence' in width of said webs of paper.

3. In a paper bag machine havin means for feeding two webs of superposepaper of different widths, in combination with a pier is adapted to bepassed out both webs of aper to form bag blanks, comprising a sing e setof dieing out rollers, spacing shoes located between said rollers, theundersides of which are tapered upward- 1%, and means for adj ustablysupporting said s oes, said shoes com ference in width of said lower webof paper relative to said upper web of paper.

4. In a paper bagmachine having means for feeding two w'ebs'ofsuperposed paper of different widths, in combination with a singlecutting unit adapted to receive and out both webs of paper to form bagblanks, comprising a single set ofdieing out rollers, spacing shoeslocated between said rollers, and means for adjustably supporting saidshoes, said nsating for the difwidth of said lower web of paper relativeto said upper web of paper.

5. A paper bag machine, as specified in claim 3, wherein the means foradj'ustably supporting said shoes comprises a pair of horizontallydisposed spaced apart bars, stud bolts attached to said bars, aplurality of plates supported by said bag machine, and nuts threaded tothe upper ends of said stud bolts whereby said bars may be raised orlowered, thereby raising or lowering said shoes relative to said dieingout rollers.

6. In a paper bag machine having means for feeding two webs ofsuperimposed paper of'different widths, in combination with a singlecutting unit adapted to receive and out both webs of papersimultaneously to form bag blanks and comprising a single set of dieingout rollers, tapering spacing shoes located between said rollers andparallel to each other over which shoes one web'of paper is adapted tobe passed and under which the remaining web of paper is adapted to bepassed, said shoes compensating for the difference in width of said websof paper,

and an elongated groove extending lengthwise in the bottomof each shoeadapted to receive the central portion of the bottom web, whereby saidbottom web is adapted to be held in perfect registry with the top web.

7. In a paper bag machine having means for feeding a plurality ofsuperimposed webs of paper of different widths through the machine, asingle set of cutting rollers adapted to receive and simultaneously outboth webs to form bag blanks, a pair of horizontally disposed shoesassociated with said cutting rollers whereby when the lower web of paperis passed beneath said shoes its difi'erence in width relative to theweb of paper passed above said shoes is compensated for at the time saidplurality of webs of paper are passing between said single set ofcutting rollers.

WILLIAM L. TAYLOR.

